What was found
IN FLIGHT FA REPORTED NO H2O PRESS IN LAVS AND GA LLEYS. REPEAT GRIPE. VERIFIED WATER ON AND WORKING NORMALLY ON GROUND AFTER BLEEDING SOME AIR. CREW REPORTS THAT THERE IS NO WATER IN FLIGHT. SUSPECT PRESSURE REGULATOR ON PNEUMATIC PRESSURIZATION SIDE. REPLACED BLEED AIR FILTER PER AMM 38-42-10 AND BOTH COMPRESSOR SUPPLY CHECK VALVES PER A.M.M. 38-42-09 AS PRECAUTION. REPLACED WATER PRESSURE REGULATOR PER AMM 38-42-08-000-801 AND AMM 38-42-08-400-801. ALL OPS AND LEAK CHECKS GOOD. BLED LAV AND GALLEY WATER FAUCETS. NO FURTHER FAULTS FOUND.